20% of what number is 80?​

Answer:

x = 1

Step-by-step explanation:

[tex]0.3x+1.7=2\\\\0.3x+1.7-1.7=2-1.7\\\\0.3x=0.3\\\\\frac{0.3x=0.3}{0.3}\\\\\boxed{x=1}[/tex]

Hope this helps.

Answer:

The relationship between the number of oranges and their price is proportional. so the answer is true

Answer:

6 cans.

Step-by-step explanation:

total of 114 square foot of surface area

Answer:

False, True, False

True first one

True second one

False third one

Answer:

x=0

Step-by-step explanation:

ima break it apart so it is easier to understand, going from left to right.

15(x-3)/5 you will distribute the 15 to the x and the -3

15x-45/5 you will divide 5 to both the 15x and the 45

3x-9 it will now be combined with the right side

now on the right side:

3(2x-3) you will distribute the 3 to the 2x and -3

6x-9 will now be combined with the left side

combining the left and right.

3x-9=6x-9 combine both 'x' es and constants

3x-6x=9-9 solve

-3x=0 divide

-3x=0 /-3 (all of it will be divided by 3 cuz what you do to one side, you gotta do to the other)

x=0

without distributive property

15(x-3)/5=3(2x-3) remove the parenthesis from the left side

3(x-3)=3(2x-3) distribute the 3 through the parenthesis on both sides

3x-9=6x-9 the rest is the same as in the combined section up above.

i hope this helps

The value of the equation 15 ( x - 3 ) / 5 = 3 ( 2x - 3 ) is x = 0

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be A

Now , the value of A is given by

15 ( x - 3 ) / 5 = 3 ( 2x - 3 )

By using the distributive property , we get

On opening the bracket , we get

( 15x - 45 ) / 5 = 6x - 9

Divide by 5 on LHS , we get

3x - 9 = 6x - 9

Subtracting 6x on both sides of the equation , we get

-3x - 9 = - 9

Adding 9 on both sides , we get

-3x = 0

x = 0

Now , without using distributive property , we get

The equation is

15 ( x - 3 ) / 5 = 3 ( 2x - 3 )

Divide by 5 on both sides , we get

3 ( x - 3 ) = 3 ( 2x - 3 )

Divide by 3 on both sides , we get

x - 3 = 2x - 3

Adding 3 on both sides of the equation , we get

x = 2x

Subtracting x on both sides , we get

x = 0

Hence , The value of the equation 15 ( x - 3 ) / 5 = 3 ( 2x - 3 ) is x = 0

To learn more about equations click :

https://brainly.com/question/19297665

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Answer:

2 game, $12

Step-by-step explanation:

Given data

Showplace Lanes charges

$4.50 per game as well as

$3 for shoe rental

Let the number of games be x

let the total charge for x games be y

y= 4.5x+3-----------1

Westgate Bowling charges

$4 per game and $4 for

shoe rental

Let the number of games be x

let the total charge for x games be y

y= 4x+4-----------2

Equate 1 and 2

4.5x+3= 4x+4

collect like terms

4.5x-4x= 4-3

0.5x= 1

divide both sides by 0.5

x= 1/0.5

x= 2 games

put x= 2 in equation 1 or 2

y= 4x+4-----------2

y= 4*2+4

y= 8+4

y= $12

Answer:

Step-by-step explanation:

re-read

Step-by-step explanation:

x = 3/2 + y/2

Answer:

Step-by-step explanation:

co-ordinates = (4,7) and (1,10)

Slope = (y² -y¹) / (x² - x¹)

= (10-7) / (1-4)

= 3 / -3

= -1

Answer:

Clarita can be only Older than 2 years old.

Step-by-step explanation:

Let

a------------> first number

b------------> second number

we know that

a+b=-7--------> a=-7-b----------> equation 1

a-b=14--------> equation 2

I substitute 1  in 2

(-7-b)-b=14-------------> -7-b-b=14----------> -7-2b=14-------> 2b=-7-14

2b=-21---------> b=-10.5

a=-7-b-------> a=-7-(-10.5)-----> a=-7+10.5------> a=3.5

the answer is

the two numbers are

a=3.5

and

b=-10.5

now gimme brainliest

Answer:

The answer is not D, it's C.

Step-by-step explanation:

Reasoning:

In answer D, the start of the line begins at 17. However, Marianne ate LESS than 16 ounces of cereal last week. Therefore, the answer cannot be D.

It also cannot be A or B, because the lines are increasing in value instead of decreasing.

The answer to this question is C.

Have a  wonderful day :)

Answer:

x &y=64 z=20

Step-by-step explanation:

ABD is an isosceles triangle therefore x and y will have the same angles.You will do 180(as angles in a triangle add up to 180) and subtract 52 which is 128.After that you then divide by 2 to get the values of x and y=64

To find z,you know that angles in a triangle equal 180 so you want to subtract 2 values from 180 to find z.To find the other value you do 180-y=180-64=116.Therefore 116+44=160, 180-160=20 so z=20

Answer:

There is no graph here

Step-by-step explanation:

-36n³ + 6n² = -6n²(6n - 1)

Answer:

-[tex]6n^{2}[/tex](6n-1)

Step-by-step explanation:

i hope its correct!! ^^

Answer:

The sequence is a geometric sequence and the common ratio is 4.

Step-by-step explanation:

Because the difference between two pairs of adjacent numbers are not constant, the sequence has to be a geometric sequence. To find the ratio of a geometric sequence, just divide any of the two adjacent numbers. That would give you a ratio of 4 as your answer.

Answer:

the anser is 5/4 or 1 1/4

Step-by-step explanation:

Answer: 240 m

Step-by-step explanation:

Given

Football field measures [tex]100\ m\times 72\ m[/tex]

Another similar field of length

[tex]L=30\ m[/tex]

and width, say W is marked

So, their area must be the same

[tex]\Rightarrow 100\times 72=30\times W\\\\\Rightarrow W=\dfrac{7200}{30}=2540\ m[/tex]

The width of the football field is 41.7m

The football measures 100m by 72 m. The school football field is similar.

For similar rectangles, the corresponding sides have common ratios. Therefore, let's establish the proportion as follows:

cross multiply

3000 = 72w

divide both sides by 72

w = 3000 / 72

w = 41.6666666667

w = 41.7 m

learn more on proportion here: https://brainly.com/question/582443

Answer:

20

Steps:

x + (x+5) + (7x-5) = 180

x + x + 5 + 7x - 5 = 180

2x + 5 + 7x - 5 = 180

9x + 5 - 5 = 180

9x = 180

x = 180/9

x = 20

Answer:

The Second one

Step-by-step explanation:

Hope This Helps ; )

Plz Mark Brainliest

Answer:

[tex]\huge\boxed{\sf Option\ B.}[/tex]

Step-by-step explanation:

The condition of being a function is that the domain (values of y) should not be repeated. However, The set in option B denies that condition. Hence Option B is only a relation and not a function.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

D. 6.28

Step-by-step explanation:

C= 2(3.14) R

R= D/2

2/2-1

R=1

C=2(3.14)1 (DON'T REALLY NEED THE !)

6.28

Answer:

On a coordinate plane, a straight line has a positive slope and goes through (negative 3, negative 3), (0, 0), and (3, 3).

Step-by-step explanation:

If f(x) and g(x) are inverse functions, then f(g(x)) = x

The graph of y = x goes thru points with the coordinates of x and y being equal.  So, the second answer is correct

Answer:

B

Step-by-step explanation:

Answer: 180

6x30=180 so you that means if you divide 180 by 6, that would equal 30

Answer:

84

Step-by-step explanation: